<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>input表单属性</title>
	</head>
	<body>
		<input type="" name="" id="" value="" placeholder="123"/>
		<script type="text/javascript">
			var inputEle = document.querySelector('input');
			console.dir(inputEle);
		</script>
	</body>
</html>
